Trigonometry

To have a good grasp of electrical theory it is important to have a grasp of trigonometry.  Whether we are talking about single phase or polyphase power, trigonometry is a key concept.  The first part of this textbook will look at one of the most basic parts of trigonometry: the triangle.

Learning Objectives

  • Define different types of angles
  • Identify the attributes of right triangles
  • Apply Pythagoras’ theorem
  • Demonstrate trigonometry using right triangles
  • Explain impedance triangles
  • Explain power triangles
See the Trigonometry section of the Appendix for worksheets that can be used in this section.

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